Solar Themal Cup/solar boiler

It can be used for boiling tea, coffee,, eggs,, instant noodles or heating any other liquids such as juices in the sunshine.Function
It has thermal insulation and heating function,suitable for outdoor staff in travel,geological prospecting or office worker.
Specifications:
Volume：230ml
Temperature：Max 100℃
Material：vacuum collector tube, stainless steel

Size：H240mm Body Diameter 70mm
N.W.:580g

Notice

It is a vacuum heating cup with high temperature, don't drink the cup mouth directly; When heating, because of relief valve depressurizes,water overflowing is normal phenomenon;